Author Topic: Thundercar Gear (Read 4644 times)

rossevans30 · « **on:** July 31, 2008, 11:25:50 PM »

Guys, I was wondering what gear to run in a thuinder there? Will a 2.73 with a 350 in 1st work?

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CanadianRacingOnline.com · « **on:** July 31, 2008, 11:25:50 PM »

Bake82 · « **Reply #1 on:** August 01, 2008, 08:01:37 AM »

Please don't quote me on this one Ross, I drive a Mini stock, but a friend works on a thunder and I think he said something about the final drive having to be around a 6.13 or 6.50. I know a big difference!

I'm not 100% sure. When do you need to know by? I'll try and find out for you!

But I will say this, in my Mini-stock(and not a top one) I am hitting about 80mph at the end of the straights. Might help you out!

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Bake82 · « **Reply #2 on:** August 01, 2008, 11:24:40 AM »

Quote from: thunder88 on August 01, 2008, 10:46:17 AM

we run a 6.80 final, and turn 6400 at the end of the straight, if you run second with a three speed you can run 4.56 or 3.73 with a glide

You've been up to Capital City Speedway?

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CanadianRacingOnline.com · « **Reply #2 on:** August 01, 2008, 11:24:40 AM »

rossevans30 · « **Reply #3 on:** August 01, 2008, 12:00:45 PM »

Quote from: thunder88 on August 01, 2008, 10:46:17 AM

we run a 6.80 final, and turn 6400 at the end of the straight, if you run second with a three speed you can run 4.56 or 3.73 with a glide

Aren't you are Barrie car? We are talking about Capital City here. Myabe my mistake just want to make sure...

2.73 x 2.52 1st gear gets me a 6.9, so that should work... If you are talking Capital City..

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rossevans30 · « **Reply #4 on:** August 01, 2008, 12:03:19 PM »

Quote from: Bake82 on August 01, 2008, 08:01:37 AM

Please don't quote me on this one Ross, I drive a Mini stock, but a friend works on a thunder and I think he said something about the final drive having to be around a 6.13 or 6.50. I know a big difference! I'm not 100% sure. When do you need to know by? I'll try and find out for you!

But I will say this, in my Mini-stock(and not a top one) I am hitting about 80mph at the end of the straights. Might help you out!

Bake, yeah if you don't see the answer on here, I would really appreciate if you could find out for me. 6.13 to 6.50 is a big diff, especially if I am thinking of running 6.9... 6.13 would be a 2.44 rear in 1st, with the th350.

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Bake82 · « **Reply #5 on:** August 01, 2008, 12:08:32 PM »

Quote from: rossevans30 on August 01, 2008, 12:03:19 PM

Quote from: Bake82 on August 01, 2008, 08:01:37 AM
Please don't quote me on this one Ross, I drive a Mini stock, but a friend works on a thunder and I think he said something about the final drive having to be around a 6.13 or 6.50. I know a big difference! I'm not 100% sure. When do you need to know by? I'll try and find out for you!

But I will say this, in my Mini-stock(and not a top one) I am hitting about 80mph at the end of the straights. Might help you out!

Bake, yeah if you don't see the answer on here, I would really appreciate if you could find out for me. 6.13 to 6.50 is a big diff, especially if I am thinking of running 6.9... 6.13 would be a 2.44 rear in 1st, with the th350.

Yup, 6.13 to 6.50 is huge difference. I'll see what I can't find out for you.

But the track is a "paper-clip" type 3/8 mile. small tight corners, long straights. I'll send a couple e-mails to some friends and let you know!

coming up next weekend

???

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bakstreethero · « **Reply #6 on:** August 02, 2008, 10:13:49 AM »

Are you going Ross? I'm out I just bought a new motor and don't have extra cash kickind around for that trip. I may be able to come up with you if you need a hand, I'll know on friday when we're out at Kawartha.

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rossevans30 · « **Reply #7 on:** August 02, 2008, 12:26:49 PM »

Quote from: bakstreethero on August 02, 2008, 10:13:49 AM

Are you going Ross? I'm out I just bought a new motor and don't have extra cash kickind around for that trip. I may be able to come up with you if you need a hand, I'll know on friday when we're out at Kawartha.

Always up for a hand, I'd be happy for you to make the trip with me

Its my understanding they are paying double. I'm looking to cover my gas with that. Drive up in the morning and back at night to save the motel costs.

All comes down to gear....

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ford93 · « **Reply #8 on:** August 02, 2008, 01:31:54 PM »

Hey Ross

We ran a 3.23 gear with a 1.82 glide at Ottawa (about a 5.90 final) (6100 to 6200 rpm).

We might run a 3.42 this time. (6.20 final) (6500 rpm???)

a t350 in 2nd gear with a 3.73 should be around a 5.60 final

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Bake82 · « **Reply #9 on:** August 02, 2008, 02:55:21 PM »

Quote from: ford93 on August 02, 2008, 01:31:54 PM

Hey Ross

We ran a 3.23 gear with a 1.82 glide at Ottawa (about a 5.90 final) (6100 to 6200 rpm).

We might run a 3.42 this time. (6.20 final) (6500 rpm???)

a t350 in 2nd gear with a 3.73 should be around a 5.60 final

Andy....you coming up this weekend???

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ford93 · « **Reply #10 on:** August 02, 2008, 04:31:57 PM »

unless it rains again..we will go to Ottawa...It is one of my fav tracks...we have fun every time we run there.

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Bake82 · « **Reply #11 on:** August 02, 2008, 05:27:28 PM »

Awesome!! that's good news!

Anybody else coming that you know besides Ross? Will Reyns come down again???

There will be NO RAIN! LOL..

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ford93 · « **Reply #12 on:** August 02, 2008, 07:13:13 PM »

87 will be there as well

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rossevans30 · « **Reply #13 on:** August 02, 2008, 11:35:26 PM »

Andy,

You told me the gear at the track, I did remeber

Heard so many different things, seems this is one track there isn't one pefect gear for.

3.73 with TH350 in second is sounds a bit tall. Right now I'm leaning for the 2.42 in 1st... 6.10 final.

Now part 2... If I use the 2.42 ripping apart my 2.73 housing to do it, will that work for Peterborough?

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ford93 · « **Reply #14 on:** August 03, 2008, 03:06:08 PM »

Hey Ross

a 6.10 final should work fine at Ottawa.
Just be careful running a t350 in 1st gear.
It can be hard on the tranny unless you know it is a strong trans.

At peterborough run around a 6.70 final.

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